[PATCH v4] common/sfc_efx/base: set return code in case of the error

[Artemii Morozov <artemii.morozov@arknetworks.am>]

If the prefix for the RSS hash was not chosen the
ENOTSUP error should be returned. Before this patch
the zero code was returned in case of an error.

Fixes: f784cdc5cbb1 ("common/sfc_efx/base: provide control to deliver RSS hash")
Cc: stable@dpdk.org

Signed-off-by: Artemii Morozov <artemii.morozov@arknetworks.am>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
---
v4: add Cc: stable@dpdk.org and transform rss to RSS
  
v3: update commit log as fix commit

v2: don't use capital letters in email

 drivers/common/sfc_efx/base/efx_rx.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/common/sfc_efx/base/efx_rx.c b/drivers/common/sfc_efx/base/efx_rx.c
index 68f42f5cac..61726a9f0b 100644
--- a/drivers/common/sfc_efx/base/efx_rx.c
+++ b/drivers/common/sfc_efx/base/efx_rx.c
@@ -937,8 +937,10 @@ efx_rx_qcreate_internal(
 
 		rss_hash_field =
 		    &erplp->erpl_fields[EFX_RX_PREFIX_FIELD_RSS_HASH];
-		if (rss_hash_field->erpfi_width_bits == 0)
+		if (rss_hash_field->erpfi_width_bits == 0) {
+			rc = ENOTSUP;
 			goto fail5;
+		}
 	}
 
 	enp->en_rx_qcount++;
-- 
2.34.1